/**
 * Products Page CSS - TeamShirtsPrint
 * Professionelles Design mit Hero-Slider Integration
 * Version: 3.0 - COMPLETE EDITION
 */

/* ==========================================================================
   CSS VARIABLES
   ========================================================================== */
:root {
    --primary: #1a202c;
    --primary-light: #2d3748;
    --accent: #3182ce;
    --accent-hover: #2c5aa0;
    --blue: #4299e1;
    --success: #38a169;
    --green: #48bb78;
    --warning: #dd6b20;
    --danger: #e53e3e;
    --white: #ffffff;
    --bg: #f7fafc;
    --bg-secondary: #edf2f7;
    --border: #e2e8f0;
    --text: #2d3748;
    --text-light: #718096;
    --text-lighter: #a0aec0;
    --gradient-1: linear-gradient(135deg, #4299e1 0%, #2c5aa0 100%);
    --gradient-2: linear-gradient(135deg, #48bb78 0%, #38a169 100%);
    --gradient-blue-green: linear-gradient(135deg, #4299e1 0%, #48bb78 100%);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   PRODUCTS SECTION
   ========================================================================== */
.products-section {
    padding: 7rem 0;
    background: var(--white);
}

.products-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 2rem;
    margin-bottom: 3rem;
}

.header-text {
    flex: 1;
}

.section-title {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    line-height: 1.7;
}

.header-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.search-box {
    position: relative;
    width: 300px;
}

.search-box svg {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
    pointer-events: none;
}

.search-box input {
    width: 100%;
    padding: 0.875rem 1rem 0.875rem 3rem;
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    transition: var(--transition);
    background: white;
}

.search-box input:focus {
    outline: none;
    border-color: var(--blue);
    box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.1);
}

.sort-select {
    padding: 0.875rem 2.5rem 0.875rem 1rem;
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--primary);
    background: white url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%232d3748' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") no-repeat;
    background-position: right 1rem center;
    cursor: pointer;
    appearance: none;
    transition: var(--transition);
}

.sort-select:focus {
    outline: none;
    border-color: var(--blue);
    box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.1);
}

/* ==========================================================================
   CATEGORY FILTERS
   ========================================================================== */
.category-filters {
    display: flex;
    gap: 1rem;
    margin-bottom: 4rem;
    overflow-x: auto;
    padding-bottom: 0.5rem;
    scrollbar-width: thin;
    scrollbar-color: var(--border) transparent;
}

.category-filters::-webkit-scrollbar {
    height: 6px;
}

.category-filters::-webkit-scrollbar-track {
    background: transparent;
}

.category-filters::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 10px;
}

.filter-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.75rem;
    background: white;
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.filter-btn:hover {
    border-color: var(--blue);
    background: var(--bg);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.filter-btn.active {
    background: var(--gradient-blue-green);
    color: white;
    border-color: transparent;
    box-shadow: 0 8px 20px rgba(66, 153, 225, 0.3);
}

.filter-icon {
    font-size: 1.5rem;
    line-height: 1;
}

/* ==========================================================================
   PRODUCTS GRID
   ========================================================================== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2.5rem;
    margin-bottom: 4rem;
}

.loading-state {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 5rem 2rem;
}

.spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--border);
    border-top-color: var(--blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1.5rem;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-state p {
    font-size: 1.1rem;
    color: var(--text-light);
    font-weight: 500;
}

/* ==========================================================================
   PRODUCT CARDS
   ========================================================================== */
.product-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-2xl);
    border-color: var(--blue);
}

.product-image {
    position: relative;
    height: 280px;
    background: linear-gradient(135deg, var(--bg) 0%, var(--bg-secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    overflow: hidden;
}

.product-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at top right, rgba(66, 153, 225, 0.05), transparent 70%);
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    position: relative;
    z-index: 1;
}

.product-icon {
    font-size: 6rem;
    line-height: 1;
    opacity: 0.9;
}

.product-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--gradient-blue-green);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 700;
    box-shadow: 0 4px 12px rgba(66, 153, 225, 0.3);
    z-index: 2;
}

.product-info {
    padding: 2rem;
}

.product-category {
    color: var(--blue);
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.75rem;
}

.product-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.75rem;
    line-height: 1.3;
}

.product-description {
    color: var(--text-light);
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.product-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1.5rem;
    border-top: 2px solid var(--border);
}

.product-price {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--primary);
}

.product-price span {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-light);
}

.btn-design {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--gradient-blue-green);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(66, 153, 225, 0.2);
}

.btn-design:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(66, 153, 225, 0.4);
}

/* ==========================================================================
   EMPTY STATE
   ========================================================================== */
.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 5rem 2rem;
}

.empty-icon {
    font-size: 5rem;
    margin-bottom: 1.5rem;
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 1rem;
}

.empty-state p {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

.btn-reset {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background: var(--gradient-blue-green);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-reset:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

/* ==========================================================================
   PAGINATION
   ========================================================================== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    margin-top: 4rem;
}

.pagination-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    background: white;
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary);
    cursor: pointer;
    transition: var(--transition);
}

.pagination-btn:hover:not(:disabled) {
    border-color: var(--blue);
    background: var(--bg);
    transform: translateY(-2px);
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination-info {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
}

.pagination-info span {
    color: var(--blue);
}

/* ==========================================================================
   BENEFITS SECTION
   ========================================================================== */
.benefits-section {
    padding: 5rem 0;
    background: var(--bg);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.benefit-card {
    background: white;
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition);
    border: 2px solid transparent;
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--blue);
}

.benefit-icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
}

.benefit-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 1rem;
}

.benefit-card p {
    font-size: 1rem;
    color: var(--text-light);
    line-height: 1.6;
}

/* ==========================================================================
   CTA SECTION
   ========================================================================== */
.cta-section {
    padding: 7rem 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(66, 153, 225, 0.2) 0%, transparent 70%);
    border-radius: 50%;
}

.cta-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.cta-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 50px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    margin-bottom: 2rem;
    font-size: 0.95rem;
    font-weight: 600;
}

.cta-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.cta-description {
    font-size: 1.25rem;
    line-height: 1.8;
    opacity: 0.9;
    max-width: 800px;
    margin: 0 auto 3rem;
}

.cta-actions {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-cta-primary,
.btn-cta-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1.25rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: var(--transition);
}

.btn-cta-primary {
    background: var(--gradient-blue-green);
    color: white;
    box-shadow: 0 10px 30px rgba(66, 153, 225, 0.3);
}

.btn-cta-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(66, 153, 225, 0.4);
}

.btn-cta-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-cta-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-3px);
}

/* ==========================================================================
   RESPONSIVE DESIGN
   ========================================================================== */

@media (max-width: 1200px) {
    .section-title {
        font-size: 2.5rem;
    }
    
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: 2rem;
    }
}

@media (max-width: 992px) {
    .products-header {
        flex-direction: column;
    }
    
    .header-actions {
        width: 100%;
        flex-direction: column;
        gap: 1rem;
    }
    
    .search-box {
        width: 100%;
    }
    
    .sort-select {
        width: 100%;
    }
    
    .category-filters {
        flex-wrap: nowrap;
        overflow-x: auto;
    }
}

@media (max-width: 768px) {
    .products-section {
        padding: 4rem 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .section-subtitle {
        font-size: 1.1rem;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-title {
        font-size: 2rem;
    }
    
    .cta-actions {
        flex-direction: column;
    }
    
    .btn-cta-primary,
    .btn-cta-secondary {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .filter-btn {
        padding: 0.875rem 1.25rem;
        font-size: 0.9rem;
    }
    
    .product-name {
        font-size: 1.25rem;
    }
    
    .product-price {
        font-size: 1.5rem;
    }
}

/* ==========================================================================
   ANIMATIONS
   ========================================================================== */

@keyframes fade-in-up {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fade-in-up 0.8s ease-out;
}